Solution - Simplification or other simple results

Step  1  :

            3
 Simplify   —
            7

Equation at the end of step  1  :

  5   3
  — • —
  8   7

Step  2  :

            5
 Simplify   —
            8

Equation at the end of step  2  :

  5   3
  — • —
  8   7

Step  3  :

Final result :

  15           
  —— = 0.26786 
  56